PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/13-10:43:00
G01     120.6          16.7                5.7 +/-    1.11      13.5 +/-    1.11  0.050 / 0.090
G08     45.3           31.4                4.5 +/-    0.40       7.7 +/-    0.40  0.050 / 0.070
G09     175.6          26.1                7.1 +/-    0.99      13.5 +/-    0.99  0.110 / 0.180
G11     107.0          37.9                7.2 +/-    1.06      10.8 +/-    1.06  0.110 / 0.200
G13     319.5          15.9                2.7 +/-    2.35       6.7 +/-    2.35  0.080 / 0.120
G17     200.5          24.9                6.7 +/-    1.28      13.1 +/-    1.28  0.080 / 0.120
G28     290.0          56.7                6.0 +/-    0.67       7.0 +/-    0.67  0.030 / 0.040
G30     341.1          65.6                4.7 +/-    0.68       5.1 +/-    0.68  0.030 / 0.030